We continue our containerization journey from last month where we covered how to refactor an application that created PDF files to use S3 to store the documents instead of relying on the local server’s storage. Another challenge often found is when an application uses outdated PHP and runs on an unsupported/outdated operating system version. What […]

If you’ve been putting off learning how to use Docker in your PHP projects, here is your chance: we’re going to start from scratch, and we’re going to cover a lot of ground to take a PHP application from running locally to running in containers, then a cluster, and ultimately in Kubernetes. Let’s get settled […]

While the kernel offers all sorts of APIs to manipulate namespaces and processes at a fine-grained level, that is often not especially helpful when trying to build systems at a more coarse-grained level, such as a macro container. As is common practice in programming, therefore, various other tools have sprung up to abstract those low-level […]

Containers are the hot technology these days. They make hosting more flexible and reliable. They make development environments easier to set up. They’re like lightweight VMs. And, based on the marketing they also taste great and are less filling. But, what are they, really?